Develop Bugs

Battery life poor except for stock

I give up.every ROM I run just doesn't have the battery life expected. Am I expecting to much? Not even Cauks or blazer el29 doesn't give the battery life as stock.don't get me wrong they are all great roms but at least for my device not battery friendly. I'll post some battery stats from BBS if anybody has some free time to see what's going on. I'm on Cauks el29 now.I format everything before flashing and I use cauks format all many times. I'm on the verge of staying on stock roll my eyes.
Sent from my SPH-D710 using xda app-developers app

bigrndahouse said:
I give up.every ROM I run just doesn't have the battery life expected. Am I expecting to much? Not even Cauks or blazer el29 doesn't give the battery life as stock.don't get me wrong they are all great roms but at least for my device not battery friendly. I'll post some battery stats from BBS if anybody has some free time to see what's going on. I'm on Cauks el29 now.I format everything before flashing and I use cauks format all many times. I'm on the verge of staying on stock roll my eyes.
Sent from my SPH-D710 using xda app-developers app
Click to expand...
Click to collapse
Well when is the last time you used stock? And if it's been quite a while...consider having your battery checked out. Anyway, I'll continue as if your battery is fine from here on out. Basically, anything but stock tends to have a modified kernel. Even with all the battery tweaks, etc out there, there's a chance that the kernel itself might not play well with your phone. I'm not too versed in that, but I also noticed that the TouchWiz based ICS kernels/ROMs give MUCH better battery life than AOSP based kernels/ROMs such as CM9 and AOKP, etc. This is just basic stuff you might already know, but yeah, just go on and post your battery stats, preferably with a custom rom and a stock rom so we can see the difference and where it lies. Also, I'm running Touched by a Galaxy S3 on my phone and with moderate use (music for maybe a few hours a day, texting, don't really make many calls) I average between 8.5 and 11 hours from 100 to 0. Another thing I'd suggest is download CPU Spy from the Android market, or something similar if you prefer, and post screenshots from that on the custom ROM; the problem with AOSP and certain other GB and TW ICS roms that i've seen is that something prevents the processor from going into deep sleep mode, usually keeping it at 200mhz or higher. Lastly, when you use the custom roms, do you notice the phone getting really hot compared to the stock roms?

I'm assuming you know this but are you letting the battery cycle a few times before passing judgement? I usually spend a week on a rom before I decide if I have good/bad battery life... attached screenie is normal for me with moderate use on mijjhs goodness rom
Sent from my SPH-D710 using xda app-developers app

I always had faster battery drains on ROMs than stock. I see all this awesome battery stats screenshots but noticed they all share one common factor, only 1hrs to 30min screen use. Come on guys why I would want that battery life if to get it I have to barely use the phone makes no sense to me.
"hey look my awesome battery life, 1d 25min" (35min) screen time" pffffftttt :what:
Sorry for the rant. Had to let it go outside.
Edit:
Btw: this post had nothing to do with the screenshot before this post. Trust me didn't notice it was there till after the post. Lol
Sent from my epic trusty EL29 this time rooted.

Sorry to disagree but that is not my experience at all... This is the m'ics rom and is typical of the battery life I get.
Sent from my SPH-D710 using xda premium

CyberpodS2 said:
Sorry to disagree but that is not my experience at all... This is the m'ics rom and is typical of the battery life I get.
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
Agree, everyone have different experiences, I haven't try that ROM yet, I will test it out later. Have a nice day/night sir.

Sadly I have to agree with OP.
And the previous screenshots at 59% with 1hr, 36 screen on is exactly the issue.
Hard to compare your battery stats with mine since screen on time for my phone will be 4+ hours.
Since there are no standardized testing anyone can do with any rom, any speculation on which rom has better battery life or doesn't is just pure bogus seat of the pants gut feelings.
If there were a standard test that ran like. 5 minutes of mail with 20 mails received, 10 minutes download, 30 mins of playing the exact same video, 13 music tracks of the exact same song all with screen, vibration, brightness, etc all at the exact same level, you could get a real test, but, alas, nobody has a standardized test.
For MY usage, stock clocks in at the same as or better than just about any other rom I've tried, including all the various super scripts out there.
I guess I just overuse my phone!

Omar04 said:
I always had faster battery drains on ROMs than stock. I see all this awesome battery stats screenshots but noticed they all share one common factor, only 1hrs to 30min screen use. Come on guys why I would want that battery life if to get it I have to barely use the phone makes no sense to me.
"hey look my awesome battery life, 1d 25min" (35min) screen time" pffffftttt :what:
Sorry for the rant. Had to let it go outside.
Edit:
Btw: this post had nothing to do with the screenshot before this post. Trust me didn't notice it was there till after the post. Lol
Sent from my epic trusty EL29 this time rooted.
Click to expand...
Click to collapse
Agreed absolutely.

bigrndahouse said:
I give up.every ROM I run just doesn't have the battery life expected. Am I expecting to much? Not even Cauks or blazer el29 doesn't give the battery life as stock.don't get me wrong they are all great roms but at least for my device not battery friendly. I'll post some battery stats from BBS if anybody has some free time to see what's going on. I'm on Cauks el29 now.I format everything before flashing and I use cauks format all many times. I'm on the verge of staying on stock roll my eyes.
Sent from my SPH-D710 using xda app-developers app
Click to expand...
Click to collapse
You're doing it wrong.
Sent from my SPH-D710 using Tapatalk 2

psych0r3bel said:
Well when is the last time you used stock? And if it's been quite a while...consider having your battery checked out. Anyway, I'll continue as if your battery is fine from here on out. Basically, anything but stock tends to have a modified kernel. Even with all the battery tweaks, etc out there, there's a chance that the kernel itself might not play well with your phone. I'm not too versed in that, but I also noticed that the TouchWiz based ICS kernels/ROMs give MUCH better battery life than AOSP based kernels/ROMs such as CM9 and AOKP, etc. This is just basic stuff you might already know, but yeah, just go on and post your battery stats, preferably with a custom rom and a stock rom so we can see the difference and where it lies. Also, I'm running Touched by a Galaxy S3 on my phone and with moderate use (music for maybe a few hours a day, texting, don't really make many calls) I average between 8.5 and 11 hours from 100 to 0. Another thing I'd suggest is download CPU Spy from the Android market, or something similar if you prefer, and post screenshots from that on the custom ROM; the problem with AOSP and certain other GB and TW ICS roms that i've seen is that something prevents the processor from going into deep sleep mode, usually keeping it at 200mhz or higher. Lastly, when you use the custom roms, do you notice the phone getting really hot compared to the stock roms?
Click to expand...
Click to collapse
Probably a good 2 weeks since on stock. I tried all ICS but i just used the kernel that it was packed with.THats a good time frame. What is the best kernel to run with roms?

cp320703 said:
I'm assuming you know this but are you letting the battery cycle a few times before passing judgement? I usually spend a week on a rom before I decide if I have good/bad battery life... attached screenie is normal for me with moderate use on mijjhs goodness rom
Sent from my SPH-D710 using xda app-developers app
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Click to collapse
Wow thats some crazy battery life. yea ive been on it for a good week. pretty much i stay on it for a week or two and then i do a battery calibrate. what kernel do you use with the Mijjhs Goodness rom

Get a good gb rom and under clock that puppy to 500 or 800. Battery definitely lasts
Sent from my SPH-D710 using Tapatalk 2

volwrath said:
Get a good gb rom and under clock that puppy to 500 or 800. Battery definitely lasts
Sent from my SPH-D710 using Tapatalk 2
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Click to collapse
Also if you use caulks roms flash his under volt script as well. I was using his -75mv script stable. Which equaled amazing battery life.
Sent from my SPH-D710 using xda app-developers app

CyberpodS2 said:
Sorry to disagree but that is not my experience at all... This is the m'ics rom and is typical of the battery life I get.
Sent from my SPH-D710 using xda premium
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Click to collapse
How did you get this type of battery life? please share the steps on how you rooted your phone up to the operation.
thanks man.

revamper said:
You're doing it wrong.
Sent from my SPH-D710 using Tapatalk 2
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Click to collapse
Thanks for your observation that I'm doing it wrong. What would be appreciated more than telling me your opinion would give me steps in correcting as to "what" i'm doing wrong

bigrndahouse said:
How did you get this type of battery life? please share the steps on how you rooted your phone up to the operation.
thanks man.
Click to expand...
Click to collapse
By not using the phone.
Sent from the terminus system using quantum entanglement

gilbydakid said:
By not using the phone.
Sent from the terminus system using quantum entanglement
Click to expand...
Click to collapse
Lol
Sent from my SPH-D710 using xda premium

Things drain battery. This is my test off wifi for the most part using the phone as a phone with average use. Didn't even log in to Google on this one. Just proof that intensive applications, google services, and anything else added after a "factory flash" can manipulate battery life significantly.
Oh, and check out drain when I'm in less than ideal coverage. Noticeable difference. One huge factor to consider when diagnosing battery life.

It really depends on what you're doing with the phone. Obviously having brightness up playing heavy games with Wimax on will kill battery faster than someone on low brightness reading an ebook with wifi on. That said, i agree that I've had better battery life stock than almost all ics roms.
My life for Aiur

barnacles10 said:
Things drain battery. This is my test off wifi for the most part using the phone as a phone with average use. Didn't even log in to Google on this one. Just proof that intensive applications, google services, and anything else added after a "factory flash" can manipulate battery life significantly.
Oh, and check out drain when I'm in less than ideal coverage. Noticeable difference. One huge factor to consider when diagnosing battery life.
Click to expand...
Click to collapse
Truth to the last word.. I hate battery life threads too many variables.. I love the part about " using the phone as a phone " you crack me up B..:laugh:

My guide for 18 hours battery life on Jelly Bean

I am here to share my experience to get 18 (around 5-8 hours screen time depend on your usage) hours normal usage, browsing chatting, facebook and calls.
2 days if you are not touching your phone at all, standby.
follow my guide, I think it's all about the Kernel but I shared the rom I used too just in case.
this guide is for GSM, might work on others just download the proper rom and kernel.
Optional, you can underclock to 1ghz but I didn't and got 18 means more if you underclock it.
http://nexus-hacks.blogspot.com/2012/08/how-to-increase-galaxy-nexus-battery.html

How many screen hours?
Sent from my GT-P3113 using xda app-developers app

Which Trinity kernel and AndroidMe rom version have you been using?
TNP1536-307-JB-STABLE35
TNP1420-307-JB-STABLE35
TNP1344-307-JB-STABLE35. Do you think this one would be a good choice to save battery?
Thanks.

wissamidrissi said:
I am here to share my experience to get 18 hours normal usage, browsing chatting, facebook and calls.
2 days if you are not touching your phone at all, standby.
follow my guide, I think it's all about the Kernel but I shared the rom I used too just in case.
this guide is for GSM, might work on others just download the proper rom and kernel.
Optional, you can undervolt to 1ghz but I didn't and got 18 means more if you undervolt.
http://nexus-hacks.blogspot.com/2012/08/how-to-increase-galaxy-nexus-battery.html
Click to expand...
Click to collapse
point 1: when you go to 1GHz , it's called underclocking. undervolting is when you lower the voltage for the corresponding processor frequencies.
point 2: 18h , but what about screen ON ? how much is the "normal usage" equivalent to, in terms of screen ON and the stuff that you're running on your phone.
it's nice to see you trying to contribute and thumbs up for the effort, and i really don't want to sound like an a-hole, but this is not a guide. flashing a custom rom + kernel, and letting the battery go through a few cycles cannot be considered as a guide with battery saving tips. Cheers mate.

shinydesert said:
which trinity kernel and androidme rom version have you been using?
Tnp1536-307-jb-stable35
tnp1420-307-jb-stable35
tnp1344-307-jb-stable35. Do you think this one would be a good choice to save battery?
Thanks.
Click to expand...
Click to collapse
tnp1536-307-jb-stable35
rayiskon said:
point 1: when you go to 1GHz , it's called underclocking. undervolting is when you lower the voltage for the corresponding processor frequencies.
point 2: 18h , but what about screen ON ? how much is the "normal usage" equivalent to, in terms of screen ON and the stuff that you're running on your phone.
it's nice to see you trying to contribute and thumbs up for the effort, and i really don't want to sound like an a-hole, but this is not a guide. flashing a custom rom + kernel, and letting the battery go through a few cycles cannot be considered as a guide with battery saving tips. Cheers mate.
Click to expand...
Click to collapse
You are right, but I learned now ^^
well around 8 hours normal usage of screen time (screen awake), and when I am on a phone call and the screen is off it toke 1% every 10mins
pardon my English

delete this reply cuz I don't find how.

Yah I hate to be that guy but where's the guide? Everyone uses their phone different. You should at least show your battery usage screen shot so we can see screen time etc.

What? Are you telling me that you get 8hrs of screen on time? Is this trolling or just a language barrier?
wissamidrissi said:
tnp1536-307-jb-stable35
You are right, but I learned now ^^
well around 8 hours normal usage of screen time (screen awake), and when I am on a phone call and the screen is off it toke 1% every 10mins
pardon my English
Click to expand...
Click to collapse

lightsout said:
Yah I hate to be that guy but where's the guide? Everyone uses their phone different. You should at least show your battery usage screen shot so we can see screen time etc.
Click to expand...
Click to collapse
sorry, I wiped stats but you can study this.
just look at my charge time compared to the times I am using phone, and because it last longer I don't care when its red and low, I was in 5% from 9pm to 11pm chatting from time to time and facebook, and btw my wifi is always on.
and pardon me I am new Xd I am just sharing something not an expert or something but next time I will make sure : it's called underclocking <- I though both are same, and post screenshot and screen on time
EDIT: I think I should charge it to 100% and make it drain then share pics with you guys, that's the proper way for screenshot right Xd? cuz mine looks like a mess XD

My guide for 18+ hours:
Stock.
Sent from my Nexus 7 using xda premium

El Daddy said:
My guide for 18+ hours:
Stock.
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
Nice XD but I love messing around my phone stock is just... normal XD

Your phone was plugged in multiple times throughout your screenshots. So yes, you should redo screen shots from 100% and include display on time.
It doesn't really matter though, as no one will see your same results unless they use their phone the exact same way.
And under clocking is unnecessary on the nexus, it doesn't spend hardly any time at 1200mhz anyway. I use mine for a lot of game play and still don't spend much time over 691mhz (Trinity kernel). So if my phone decides it does need to ramp up to 1190mhz to remain buttery smooth I'm not going to interfere.
Sent from my SGH-T959V using xda premium

Nice. Will check this out.. I run my phone down pretty quick these days heh

I'm not understanding why you prefer 1.5 trinity kernel and 307 gpu. What benefit are you seeing versus the other trinity kernels with higher gpu and lower overclock limits? Are you running your phone at 1.5?
Sent from my Galaxy Nexus using Tapatalk 2

El Daddy said:
My guide for 18+ hours:
Stock.
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
Same here. I have no problem getting 18 hours out of my stock battery using the stock ROM and kernel, including just shy of 6 hours of screen on time.

I dont know that I would call this a guide. Its saying to use a certain rom and kernel and to charge the phone. . . . .

hey thanks for the write up... i used it alone to change the colors! now my screen isn't yellow.
question though... when I adjust my colors manually, when I go to 0 percent brightness, everything goes like super green... like crazy looking lol.. but at 3 percent it's fine again... any idea why this happens and how I can fix it to get true 0 percent? thanks!
Sent from my Galaxy Nexus using Tapatalk 2

I'm using a stock one and all I can say is: Just dont use Nexus as a videogame.
I got 3 days and some hours of battery talking some minutes and using wifi for some time (probably 4 hours overall).
Playing sucks up the battery life. At least for me.
A normal day of use, with wifi active, many calls, auto bright and SetCPU profiles gives me 'bout 18-24 hours of use.
A intense play day gives me 8 hours. And I think its generous.
:victory:

jayochs said:
hey thanks for the write up... i used it alone to change the colors! now my screen isn't yellow.
question though... when I adjust my colors manually, when I go to 0 percent brightness, everything goes like super green... like crazy looking lol.. but at 3 percent it's fine again... any idea why this happens and how I can fix it to get true 0 percent? thanks!
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
Finally I helped one person, thanks man I love you XD
and this guide is just experience, because most people are wondering what is best rom and kernel combination, well this was best for me at least.

full stock

Rom w/ Best Battery Life

curious to see which ROM you experienced the best battery life with. I am not a big flasher but used darkside v8 and CMX and seems like v8 got better battery life. Mainly a web browser, email, pandora. not big on games. what has your experience been like so far?

Nothing wrong with stock ICS (if you tune it right). No need for CPU sleepers scripts or something like that if you keep you phone clean from sloppy written apps.

Vlad_z said:
Nothing wrong with stock ICS (if you tune it right). No need for CPU sleepers scripts or something like that if you keep you phone clean from sloppy written apps.
Click to expand...
Click to collapse
Wow dude can you give me some tips on how to get this type of battery life. I'll kick CM9,CM10, AND AOKP to the side to get half that production. The best I've done is 30% after 28 hours hitting Youtube pretty hard .

Vlad_z said:
Nothing wrong with stock ICS (if you tune it right). No need for CPU sleepers scripts or something like that if you keep you phone clean from sloppy written apps.
Click to expand...
Click to collapse
Ohhhh great master tell us your tweaks

Its called not using your phone and letting it sleep
Sent from my SGH-T989 using xda premium

teambestyrandy said:
Its called not using your phone and letting it sleep
Sent from my SGH-T989 using xda premium
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Click to collapse
Lol, that can't be the answer I like using Jedi Mind Trick, I'm getting far better battery life than when I was on the Darkside Rom, even with tweaks.

Jedi ROM is rocking. Beutiful with battery and really fast

whick kernel are you guys using with jedi? faux 006 or faux 007?

Alpha-Wat3rloo said:
Lol, that can't be the answer I like using Jedi Mind Trick, I'm getting far better battery life than when I was on the Darkside Rom, even with tweaks.
Click to expand...
Click to collapse
Sure it can. 1 hour of screen time?
I personally use stock rooted GB and average 1 day 12 hours with 3 hours of screen time. I've got screen shots in one of the other battery life threads. That's fine for me.
Sent from my SGH-T989 using xda app-developers app

faux 07 is stock with ver 4 of the jedi rom - its by far the best i've used so far

Some comments/explanation on my previously posted stats are here:
http://forum.xda-developers.com/showthread.php?p=30232606#post30232606

bxrdj said:
faux 07 is stock with ver 4 of the jedi rom - its by far the best i've used so far
Click to expand...
Click to collapse
heard that some people are having deep sleep issues with 07 so they are going back to 06.

Vlad_z said:
Nothing wrong with stock ICS (if you tune it right). No need for CPU sleepers scripts or something like that if you keep you phone clean from sloppy written apps.
Click to expand...
Click to collapse
Why even have a phone if you don't use it? Out of 96 hours you used it for 1 hour, thats like 15 min a day. That's not showing good battery life of usage, it's showing battery life on standby
Sent from my SGH-T989 using Tapatalk 2

elflip88 said:
Why even have a phone if you don't use it? Out of 96 hours you used it for 1 hour, thats like 15 min a day. That's not showing good battery life of usage, it's showing battery life on standby
Sent from my SGH-T989 using Tapatalk 2
Click to expand...
Click to collapse
You right. I was experimenting those days. Besides it was 30 min per day - 15 min of screen time (checking email and reading news) and 15 min of voice call.
This test also shows that there are no rough apps on my phone which could eat battery on background. And the ROM is pretty stable. What would be your results in similar scenario?
If you have read my posts - one day I had 7:40 hours of screen time (was reading ebook) and had 40% battery left. This is another type of usage.
So power consumption is vastly different depending on type of usage... if say you are looking YouTube through 4G your phone will be dead in 2-3 hours...
I have posted results of power consumption during different type of usage so one can compare more objectively and not against "OMG this ROM/app are so good" statements.

Don't have any stats to prove it other than experience but after a few hours on Jedi Mind Trick I can already tell it's being great on battery compared to any AOSP based ROM and it's SNAPPY fast! :thumbup:
For some reason it reminds me of the Darkside GB based ROM Digital Warfare (this thing was crazy good on battery!).
Sent from my SGH-T989 using Tapatalk 2

some people use 007 and others 006. New JEDI V5 is ready to download

I'm on rooted Stock ICS and get 6-10 hours of battery life depending how much I'm using my phone whether it's on facebook,twitter,foursquare, instagram, textin etc etc.

[Q] What are you currently doing to increase battery life?

We all know our GS2 runs out of Battery at a faster rate than what we would like! I'm just curious, what steps do You take to increase battery life, if any.
-Do you use certain apps?
-Do you enable/disable certain things and certain times?
-Anything, ever the smallest things you do, I would like to know!
I'm just curious to see what different people do to strengthen their battery.
(Also, if you could, please just post what ROM you're running on too) Thanks!

I use developer options and limit the apps to 4. I also under clock to 200. Stock rom.
Sent from my SPH-D710 using xda app-developers app

Shader-LXIX said:
I use developer options and limit the apps to 4. I also under clock to 200. Stock rom.
Sent from my SPH-D710 using xda app-developers app
Click to expand...
Click to collapse
lol! 200?!?!

i run cm10 and I really don't do anything but dim my screen most of the time.

Battery Life
Im running FK23 leaked rooted with stock kernel. I use powersave mode that comes in stock settings app.
I don't limit cpu. I use phone to txt, play games, youtube, facebook, twitter, and instagram and google play store.
I get around 14+ hours usage.
Also, I try to use WIFI whenever I can. I turn off GPS when not needed. I dont use 4G often as 3G is pretty good on FK23.
Lasts me from 7:45AM to 10:27PM as of now on 1%.

Wow, and how much do you use you're phone throughout the day? I'm just looking for new ideas because I do several things to increase my battery length, but I find myself around 50% in the first 2-3 hours of my 11 hour day. :/
Sent from my SPH-D710 using xda premium

DustCrow said:
Wow, and how much do you use you're phone throughout the day? I'm just looking for new ideas because I do several things to increase my battery length, but I find myself around 50% in the first 2-3 hours of my 11 hour day. :/
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
I bought a cheap ($10) extended battery and cover, and a cheap ($9) TPU case/ At 14 hours, I still had 61% battery left. I can get a full legitimate day out of it running 2.3's, but I am going to try JB and ICS again and see where it's at.

I run KingKang with the JB tweaks package. I also modified my build.prop for both performance and battery life. Plus I toggle my 3G on only when I need it. If I have a WiFi signal I'll do the same with that. I average 17 hours but sometimes I get more than 24. Inverted apps not only look great, but help with battery too.
Sent from my SPH-D710 using xda app-developers app

Honestly? #1 thing I do is stay on wi-fi as much as possible. Have gone almost 24 hours if I keep off 3G/4G and moderately use the phone/'net.

Where did you purchase the battery, and how much stronger is it? Also, what kind of case did you get, one that chargers your phone?
Sent from my SPH-D710 using xda premium

DustCrow said:
Where did you purchase the battery, and how much stronger is it? Also, what kind of case did you get, one that chargers your phone?
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
Just bought the cheapest 3500 mah battery with a back plate on Amazon, then the ONLY extended tpu case made by trexcell on Ebay. 20 bucks and I leave wifi gps and everything I use on all day long.
Epic4GT with different ROMs every few days. Thanks Devs!

DustCrow said:
We all know our GS2 runs out of Battery at a faster rate than what we would like! I'm just curious, what steps do You take to increase battery life, if any.
-Do you use certain apps?
-Do you enable/disable certain things and certain times?
-Anything, ever the smallest things you do, I would like to know!
I'm just curious to see what different people do to strengthen their battery.
(Also, if you could, please just post what ROM you're running on too) Thanks!
Click to expand...
Click to collapse
I switched back to Calkulin 3.0. Battery issues solved.
I tried to make ICS work for a couple months, but grew to hate the phone. It's a much better phone when it runs Gingerbread.

MoMatt said:
I switched back to Calkulin 3.0. Battery issues solved.
I tried to make ICS work for a couple months, but grew to hate the phone. It's a much better phone when it runs Gingerbread.
Click to expand...
Click to collapse
I did the same as you until the fk23 leak came out. Calkulin's v3.0 gb is amazing for battery life, smoothness, and functionality. I was never fully satisfied with any of the ics solutions, stock or custom.
Although the fk23 battery life isnt as good as calkulin, I'm still using it as my daily driver bc it's jellybean and cool, the phone runs well and smooth, and battery is good enough for me.
To answer the op's question, I do the following to help extend my battery life:
1. Leave off all data unless I need to use it (3g, 4g, wifi).
2. Turn of autosync and only sync as needed.
3. Remove bloatware and/or freeze any unnecessary apps (use GSM battery and OS monitor to find battery hog apps).
4. Leave off GPS unless needed.
5. Set screen brightness lower.

Here's a link to my FK23 results over in the battery thread in General:
http://forum.xda-developers.com/showpost.php?p=34924972&postcount=534
I've only owned this phone since after the ICS update, so never tried any GB ROM.
The ICS ROM I've had the most success with is Re-Calked, but FK23 takes it just a step further for me. I know some people have been reporting issues with FK23, but for me it has been rock solid and has been my DD for nearly a week now.
Blu Kuban also did well with battery life, but it is a little over-customized for my liking. I also had some stability issues with BK. I used sleshpics M'ICS build for a while too ... again, over customized for my liking. Good performance and relatively stable. Also, I have never been able to get 4G speeds on any other ROM/kernel like I'm seeing now.
If I'm in an area with a strong cellular signal, I can get over 24h with 3h+ screen time both on and off WiFi. If the cell signal is week, I burn from 5-7%/h so maybe 15-16h if I was there all day ... but that would obv. improve if I threw it into airplane mode.
I have frozen all of the bloatware apps, don't have Google Now activated. Other than that, I allow syncing to occur per default. I don't have FB app installed.
I use auto-brightness most of the time, and I have a dark wallpaper.

dim screen. stay on wifi. that is all.

Honestly, getting use to a dimmed screen made a HUGE difference!!

Is there ever a time when its better to not be on WiFi, of a WiFi is available?
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DustCrow said:
Is there ever a time when its better to not be on WiFi, of a WiFi is available?
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I have had huge battery drain while being on wifi when availible 100% of the time I only use wifi when I need a faster connection

DustCrow said:
Wow, and how much do you use you're phone throughout the day? I'm just looking for new ideas because I do several things to increase my battery length, but I find myself around 50% in the first 2-3 hours of my 11 hour day. :/
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Surprisingly i use my phone alot for twitter, facebook, and texting.
And i still get around the time i wake up till the time i sleep!

undervolt cpu and gpu
max freq 1000
pegasus q governor

[Q] Hows the Battery Life?

Hi everyone.. im currently using ATT s3 and get onscreen time of max 4hrs on wifi and 2hours-ish on 4g. Im thinking of switching to note 2. hows the battery life on the phone considering the 3100 mA battery
thanks

Lots of threads on it, but here is mine from yesterday:
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I can get about 2 days off a charge.
Min talk. I don't talk alot
Excessive txt
Excessive web
Min streaming
I use wifi where avaliable
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Battery
moinsheriff said:
Hi everyone.. im currently using ATT s3 and get onscreen time of max 4hrs on wifi and 2hours-ish on 4g. Im thinking of switching to note 2. hows the battery life on the phone considering the 3100 mA battery
thanks
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Excellent! with heavy use of ~ 200 emails a day 1h on internet and about 30min looking up news and 1-2h of calls i get 12-16h.

I tried the best I knew how and I couldnt kill the battery for 2 days. I ran everything at once (not truly everything) and it just wouldn't die.
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Battery is ridiculous. After diagnosing my wifi wakelock issue and installing jedi rom I get 4 hoursish per 1% when it goes into sleep, and that's in a basement mostly with horrible reception.

im getting worse battery life ever since the multiwindow update. not sure if anyone else has the same issue, but it seems like tmobile users are complaining about the same thing. it might be due to lack of battery calibration.

Well, here's a visual. Just achieved this impressive feat. 81 HOURS on pure battery! Almost 3.5 hours of screen-on time. I choose to not utilize my phone much over the holiday weekend, so that explains the low screen-on time. Regardless, I think these results are more than impressive. Nothing was restricted on my device. Live wallpaper going the whole time, auto screen brightness (usually a high setting), WiFi going, auto-syncing from emails to Facebook to Twitter, watched a bit of "The Dark Knight Rises" in full-1080p HD, made a bunch of miscellaneous phone calls. I am more than amazed at this phone and its battery. Haven't seen anything close to this in more than five years or so. These results are after updating to 4.1.2 with multi-window, and these are the best results I've ever gotten on this device.
On a side note, if anyone is getting results like the first poster with 8+ hours of screen-on time, it would really help if you described what you typically do with your phone and what you may have done to your phone. Just posting a screenshot tells nothing. You could be web browsing all day with your screen set to 20% brightness, and nothing more. What are you doing? Watching movies? Listening to music? Emailing? Texting? And if you're rooted that makes a ton of difference, so the results wouldn't be exactly truthful or accurate I should say.

Dr. Evo said:
Well, here's a visual. Just achieved this impressive feat. 81 HOURS on pure battery! Almost 3.5 hours of screen-on time. I choose to not utilize my phone much over the holiday weekend, so that explains the low screen-on time. Regardless, I think these results are more than impressive. Nothing was restricted on my device. Live wallpaper going the whole time, auto screen brightness (usually a high setting), WiFi going, auto-syncing from emails to Facebook to Twitter, watched a bit of "The Dark Knight Rises" in full-1080p HD, made a bunch of miscellaneous phone calls. I am more than amazed at this phone and its battery. Haven't seen anything close to this in more than five years or so. These results are after updating to 4.1.2 with multi-window, and these are the best results I've ever gotten on this device.
On a side note, if anyone is getting results like the first poster with 8+ hours of screen-on time, it would really help if you described what you typically do with your phone and what you may have done to your phone. Just posting a screenshot tells nothing. You could be web browsing all day with your screen set to 20% brightness, and nothing more. What are you doing? Watching movies? Listening to music? Emailing? Texting? And if you're rooted that makes a ton of difference, so the results wouldn't be exactly truthful or accurate I should say.
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Sorry for the lack of detail, I should have included that. I was browsing the net on wifi, playing Words, emailing/texting, various phone calls, watching youtube videos, and spending time on the XDA app. (of course)
I'm rooted and using clean rom 3.5. Auto brightness is on and I'm about 50% on the slider.
Here is where I sit today: (not much youtube though)
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^^^ Thanks. So, that does change things, since you're rooted. The reason why I'm making a big deal about it, is because your results (and anyone else rooted) aren't typical results of someone stock. So a person not knowing any better would assuming they'd get your battery results from stock.

How is that possible? I use my note for about 5hrs of screen time and it's at like 3%. I am on an international rom and I undervolted along with perseus 1.8ghz kernel. Even when I did not have perse us, I never got above 6hrs? What settings do you use? I'm on wifi all day with the brightness All the way down. Please let me know! I really want to get that 8hrs of screen on time!
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UrbanLagoon said:
How is that possible? I use my note for about 5hrs of screen time and it's at like 3%. I am on an international rom and I undervolted along with perseus 1.8ghz kernel. Even when I did not have perse us, I never got above 6hrs? What settings do you use? I'm on wifi all day with the brightness All the way down. Please let me know! I really want to get that 8hrs of screen on time!
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Clean Rom 3.5, I also make sure and close out of anything I'm not using. I also use the ES Task Manager widget to clear my ram before I power down for any period of time.
That's about it, besides not having a ton of widgets running.
I didn't get much over six hours of screen time with my Jedi Rom, but in fairness to it, it was my first rom and I don't think I did it quite right, installing other things with it that probably weren't compatible.
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---------- Post added at 09:14 PM ---------- Previous post was at 09:09 PM ----------
Dr. Evo said:
^^^ Thanks. So, that does change things, since you're rooted. The reason why I'm making a big deal about it, is because your results (and anyone else rooted) aren't typical results of someone stock. So a person not knowing any better would assuming they'd get your battery results from stock.
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Like Dr. Evo points out, one of the great things about custom roms is they get rid of all the bloatware from ATT and other carriers. Stock I was lucky to have 1gb of free ram at any time, now I'm always around 1.1-1.2gb free without much effort on my part.
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